diff --git a/libxul.patch b/libxul.patch
new file mode 100644
index 0000000..fb96f30
--- /dev/null
+++ b/libxul.patch
@@ -0,0 +1,12 @@
+diff -up yelp-2.23.1/configure.in.libxul yelp-2.23.1/configure.in
+--- yelp-2.23.1/configure.in.libxul	2008-06-20 13:58:52.000000000 -0400
++++ yelp-2.23.1/configure.in	2008-06-20 13:59:02.000000000 -0400
+@@ -248,7 +248,7 @@ if test $MOZILLA = libxul-embedding; the
+ 	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[libxul-embedding $gecko_cv_extra_pkg_dependencies])
+ 	MOZILLA_COMPONENT_CFLAGS="$MOZILLA_COMPONENT_CFLAGS `$PKG_CONFIG --cflags ${gecko_cv_gecko}` `$PKG_CONFIG --define-variable=includetype=unstable --cflags ${gecko_cv_gecko}`"
+ else
+-	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[${gecko_cv_gecko}-xpcom >= $gecko_min_version $gecko_cv_extra_pkg_dependencies])
++	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[${gecko_cv_gecko} >= $gecko_min_version $gecko_cv_extra_pkg_dependencies])
+ fi
+ 
+ # Set flags
diff --git a/yelp.spec b/yelp.spec
index 33a854a..57384d0 100644
--- a/yelp.spec
+++ b/yelp.spec
@@ -36,6 +36,7 @@ Patch6: hp.patch
 
 # http://bugzilla.gnome.org/show_bug.cgi?id=539332
 Patch11: standard-icon.patch
+Patch12: libxul.patch
 
 
 License: GPLv2+
@@ -95,6 +96,7 @@ one central tool.
 %patch3 -p1 -b .use-pango
 %patch6 -p1 -b .hp
 %patch11 -p1 -b .standard-icon
+%patch12 -p1 -b .libxul
 
 %build
 %configure 			\